Create original content, build it up, optimize it for search engines. Promote it. Once that is done add more content..then think about adsense.

Only things to keep in mind are keywords and phrases you want to build upon when creating your content, nothing more.

Trust me, it will save you so much time, effort and long nights. This method really works, others might have another opinion.

All i am saying, is if i put so much effort into my content rather than trying to figure out adsense, i would have more than double my content. Thus equaling more traffic which equals more $$$$$